AVALIAÇÃO DE ESPÉCIES FORRAGEIRAS COMO PLANTAS DE COBERTURA SOBRE OS COMPONENTES DE PRODUÇÃO DO MILHO CULTIVADO NO SISTEMA PLANTIO DIRETO

Rodrigo Gomes Pereira; Priscilla Vanúbia Queiroz de Medeiros; Marcelo Cavalcante; Simério Carlos Silva Cruz; Emanuel da Silva Barros

AVALIAÇÃO DE ESPÉCIES FORRAGEIRAS COMO PLANTAS DE COBERTURA SOBRE OS COMPONENTES DE PRODUÇÃO DO MILHO CULTIVADO NO SISTEMA PLANTIO DIRETO

2009

Rodrigo Gomes Pereira | Priscilla Vanúbia Queiroz de Medeiros | Marcelo Cavalcante | Simério Carlos Silva Cruz | Emanuel da Silva Barros

The Grass, have high relation for C / N and a fascicule root system, is an alternative for use in the system of tillage (SPD) in northeastern Brazil. This work had the objective to assess the effects of three plants and grass cover on the components of production of the corn crop in no-tillage system and accumulation of biomass of their grass. The design was randomized blocks with four replications, with each plot area of 112 m2 (5,6 x 20,0m). The treatments consisted of the corn cultivation, DKB-333-B, about three grass species (Brachiaria decumbens, Brachiaria humidicola and Tifton in the system of tillage and a witness, without vegetation. The B. decumbens provided higher income to the corn crop, producing 5708 kg ha-1, didn't differ of the witness. The use of grass as cover plants are a viable alternative to the SPD of the corn crop, adding value by producing two crops (corn and grass), and protect the soil against erosion and produce forage for ruminants during the between-season .

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